package homework_03;

/**
 * 桃饱网会员问题
 */
public class Test_04 {
    public static void main(String[] args) {
        int num = 1; //第十天
        for(int i=0;i<9;i++){//之前九天
            num = (num + 1) * 2;
        }
        System.out.println(num);
    }
}
